Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua, manh cua
cua nhung » va nhung
dan toan » van toan, dan than, manh toan
van tan » van tuan, van ban, van tai

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - canh tranh cua nhung cong ((((dan toan) OR (van tan))) OR (dan gian)) cau~.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh tranh cua nhung cong ((((dan toan) or (van tan))) or (dan gian)) cau*.